can I stop my phone from connecting to a WiFi spot

where I live there are a couple of freebie hotspots. They don't need an access key to connect, but they do need a login to use the internet. My phone often connects to them and then when I try to use the net, I get the constant spinning icon and then I remember what's happened and have to go into settings and 'forget this network' and connect to my home network.

Is there a way I can prevent it from automatically connecting to networks that I don't want it to?